Fig. 1From: Hallux valgus deformity and postural sway: a cross-sectional studyMeasurement of the photographic hallux valgus angle. A: The inside edge of the hallux. B: The inside edge of the head part of the first metatarsal bone. C: The inside edge of the part of the first metatarsal bone defined as the length of AB = BC. Photographic hallux valgus angle: The angle formed by AB and BCBack to article page